Milder air will make a comeback later this week after a winter storm grazes the Chicago area.
The storm could bring some snow to Chicagoland but the worst of the storm isn't expected to form over that part of the Midwest on Tuesday night.
There could be lake-enhanced snow and flurries on Wednesday, a definitely colder day for the week with a high in the upper 20s.
The milder air will start to make a return on Thursday as temperatures climb towards 40, then nearing 50 on Friday.
This weekend will be one of the busiest travel weekends across the country as millions people head home from Christmas travels.
Just in time for Boxing Day and the weekend, a winter storm is set to dive into the United Kingdom and central Europe with rain and disruptive snow.
A system tracking over the Rocky Mountains will spread snow over the region and into the Plains through the remainder of the week.
While lacking across a large part of the United States on Christmas Day, arctic air is set to make a comeback during the final days of 2014.
On Christmas Day in 1776, George Washington led his troops across the Delaware River, in spite of treacherous weather, for a pivotal moment in the Revolutionary War.
Cap May, NJ (1909)
28.57" barometer reading during large coastal storm.
Record Christmas cold wave: 1 degree - Philadelphia, PA (tied record) -12 degrees - Pittsburgh, PA -12 degrees - Cincinnati, OH -4 degrees - Nashville, TN 41 degrees - Miami, FL
International Falls, MN (1991)
38 degrees - the "warmest" Christmas on record.